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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Analysis of Arsenic(III) by the Cathodic Stripping Voltammetry

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1992, v.5 no.4, pp.417-423
Yun, Young Ja
Lee, Hyung Sook
Ko, Weon Bae
Kim, Chung Hee
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Abstract

The effects of metal ions on the arsenic(III) stripping peak were examined by the cathodic stripping voltammetry. The reduction stripping peak potential and current of arsenic(III) value were -0.79V(vs. Ag/AgCl). <TEX>$0.86{\mu}A$</TEX> by using 0.1N-hydrochloric acid solution. When 10 times of Cu(II) was added to the solution, the reduction stripping peak potential of arsenic(III) was the value of -0.84V(vs. Ag/Cl), which showed a good agreement with theoretical value -0.84V(vs. Ag/Cl) by using 0.1N hydrochloric acid solution. Lead(II) and copper(II) increased the stripping peak heigh of arsenic(III), Among them, the copper(II) extremely enhanced it.

keywords
Cathodic stripping voltammetry, Arsenic(III)


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